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<h1>Instrmnt.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_INSTRMNT_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define STK_INSTRMNT_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include &quot;Stk.h&quot;</span>
<a name="l00005"></a>00005
<a name="l00006"></a>00006 <span class="keyword">namespace </span>stk {
<a name="l00007"></a>00007
<a name="l00008"></a>00008 <span class="comment">/***************************************************/</span>
<a name="l00017"></a>00017 <span class="comment">/***************************************************/</span>
<a name="l00018"></a>00018
<a name="l00019"></a><a class="code" href="classstk_1_1Instrmnt.html">00019</a> <span class="keyword">class </span><a class="code" href="classstk_1_1Instrmnt.html" title="STK instrument abstract base class.">Instrmnt</a> : <span class="keyword">public</span> <a class="code" href="classstk_1_1Stk.html" title="STK base class.">Stk</a>
<a name="l00020"></a>00020 {
<a name="l00021"></a>00021 <span class="keyword">public</span>:
<a name="l00023"></a><a class="code" href="classstk_1_1Instrmnt.html#a6f3c4dc01e0484f0ca4a3b14f1b7caf0">00023</a> <a class="code" href="classstk_1_1Instrmnt.html#a6f3c4dc01e0484f0ca4a3b14f1b7caf0" title="Class constructor.">Instrmnt</a>( <span class="keywordtype">void</span> ) { lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#a386e1b86cf48f7a8117313f9e41fc0fe" title="Resize self to represent the specified number of channels and frames.">resize</a>( 1, 1, 0.0 ); };
<a name="l00024"></a>00024
<a name="l00026"></a>00026 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Instrmnt.html#a0736ccd253b446660938d51909a32f44" title="Start a note with the given frequency and amplitude.">noteOn</a>( StkFloat frequency, StkFloat amplitude ) = 0;
<a name="l00027"></a>00027
<a name="l00029"></a>00029 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Instrmnt.html#a582c77e71cd2c5cb46ba6f78fa0ac6a2" title="Stop a note with the given amplitude (speed of decay).">noteOff</a>( StkFloat amplitude ) = 0;
<a name="l00030"></a>00030
<a name="l00032"></a>00032 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Instrmnt.html#a597efc508ad367a308fa11b8cbdc96a7" title="Set instrument parameters for a particular frequency.">setFrequency</a>( StkFloat frequency );
<a name="l00033"></a>00033
<a name="l00035"></a>00035 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Instrmnt.html#a5aecf9f4d4dcecdbef8271c7fe62b2cf" title="Perform the control change specified by number and value (0.0 - 128.0).">controlChange</a>(<span class="keywordtype">int</span> number, StkFloat value);
<a name="l00036"></a>00036
<a name="l00038"></a><a class="code" href="classstk_1_1Instrmnt.html#a32564b611598653fce5e708821b3fcb4">00038</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classstk_1_1Instrmnt.html#a32564b611598653fce5e708821b3fcb4" title="Return the number of output channels for the class.">channelsOut</a>( <span class="keywordtype">void</span> )<span class="keyword"> const </span>{ <span class="keywordflow">return</span> lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>(); };
<a name="l00039"></a>00039
<a name="l00041"></a><a class="code" href="classstk_1_1Instrmnt.html#a277ac5149ec22c33d794dfd462a82d2b">00041</a> <span class="keyword">const</span> <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>&amp; <a class="code" href="classstk_1_1Instrmnt.html#a277ac5149ec22c33d794dfd462a82d2b" title="Return an StkFrames reference to the last output sample frame.">lastFrame</a>( <span class="keywordtype">void</span> )<span class="keyword"> const </span>{ <span class="keywordflow">return</span> lastFrame_; };
<a name="l00042"></a>00042
<a name="l00044"></a>00044
<a name="l00052"></a>00052 StkFloat <a class="code" href="classstk_1_1Instrmnt.html#aaa6bd5e4a5be7f9b0be967daf012872e" title="Return the specified channel value of the last computed frame.">lastOut</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
<a name="l00053"></a>00053
<a name="l00055"></a>00055
<a name="l00058"></a>00058 <span class="keyword">virtual</span> StkFloat <a class="code" href="classstk_1_1Instrmnt.html#ad5d070c1fc6f93124dfed2a27b8e3cf1" title="Compute one sample frame and return the specified channel value.">tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 ) = 0;
<a name="l00059"></a>00059
<a name="l00061"></a>00061
<a name="l00068"></a>00068 <span class="keyword">virtual</span> <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>&amp; <a class="code" href="classstk_1_1Instrmnt.html#ad5d070c1fc6f93124dfed2a27b8e3cf1" title="Compute one sample frame and return the specified channel value.">tick</a>( <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>&amp; frames, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 ) = 0;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keyword">protected</span>:
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> lastFrame_;
<a name="l00073"></a>00073
<a name="l00074"></a>00074 };
<a name="l00075"></a>00075
<a name="l00076"></a><a class="code" href="classstk_1_1Instrmnt.html#a597efc508ad367a308fa11b8cbdc96a7">00076</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Instrmnt.html#a597efc508ad367a308fa11b8cbdc96a7" title="Set instrument parameters for a particular frequency.">Instrmnt :: setFrequency</a>( StkFloat frequency )
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 oStream_ &lt;&lt; <span class="stringliteral">&quot;Instrmnt::setFrequency: virtual setFrequency function call!&quot;</span>;
<a name="l00079"></a>00079 <a class="code" href="classstk_1_1Stk.html#a48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::WARNING );
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081
<a name="l00082"></a><a class="code" href="classstk_1_1Instrmnt.html#aaa6bd5e4a5be7f9b0be967daf012872e">00082</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Instrmnt.html#aaa6bd5e4a5be7f9b0be967daf012872e" title="Return the specified channel value of the last computed frame.">Instrmnt :: lastOut</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel )
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00085"></a>00085 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel &gt;= lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() ) {
<a name="l00086"></a>00086 oStream_ &lt;&lt; <span class="stringliteral">&quot;Instrmnt::lastOut(): channel argument is invalid!&quot;</span>;
<a name="l00087"></a>00087 <a class="code" href="classstk_1_1Stk.html#a48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::FUNCTION_ARGUMENT );
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089 <span class="preprocessor">#endif</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span>
<a name="l00091"></a>00091 <span class="keywordflow">return</span> lastFrame_[channel];
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a><a class="code" href="classstk_1_1Instrmnt.html#a5aecf9f4d4dcecdbef8271c7fe62b2cf">00094</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Instrmnt.html#a5aecf9f4d4dcecdbef8271c7fe62b2cf" title="Perform the control change specified by number and value (0.0 - 128.0).">Instrmnt :: controlChange</a>( <span class="keywordtype">int</span> number, StkFloat value )
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 oStream_ &lt;&lt; <span class="stringliteral">&quot;Instrmnt::controlChange: virtual function call!&quot;</span>;
<a name="l00097"></a>00097 <a class="code" href="classstk_1_1Stk.html#a48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::WARNING );
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00100"></a>00100 } <span class="comment">// stk namespace</span>
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="preprocessor">#endif</span>
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<tr><td><A HREF="http://ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
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